the chief is expected to testify about the pentagon's response to the attack on ought consulate. he said the u.s. didn't have enough time to respond. he says it's not like you can pick up the phone and call 911. mike emanuel is on the hill. set the stage for us on this hearing. >> reporter: it's designed to address the concerns of south carolina senator lindsey graham who threatened to hold up the confirmation for chuck hagel, his successor. so what did the president know about the benghazi attack september 11, when did he know about it and what did he do about it? sources i talked to say panetta and others are carrying out the orders of the commander-in-chief. so what were they and how were they handled. expect fireworks. rick: later on this afternoon the president's nominee the head of the cia takes center stage. >> reporter: expect john brenner to get plenty of questions about the use of enhanced interrogation techniques during this time at cia. he left there in 2005. at the white house they are emphasizing brennan's experience. >> mr. brennan brings, i think, not on a vast am